diff options
| -rw-r--r-- | drivers/bcma/sprom.c | 7 | ||||
| -rw-r--r-- | include/linux/bcma/bcma_driver_chipcommon.h | 16 |
2 files changed, 23 insertions, 0 deletions
diff --git a/drivers/bcma/sprom.c b/drivers/bcma/sprom.c index e35134f724f6..ca7752510d5b 100644 --- a/drivers/bcma/sprom.c +++ b/drivers/bcma/sprom.c @@ -250,6 +250,7 @@ int bcma_sprom_get(struct bcma_bus *bus) { u16 offset; u16 *sprom; + u32 sromctrl; int err = 0; if (!bus->drv_cc.core) @@ -258,6 +259,12 @@ int bcma_sprom_get(struct bcma_bus *bus) if (!(bus->drv_cc.capabilities & BCMA_CC_CAP_SPROM)) return -ENOENT; + if (bus->drv_cc.core->id.rev >= 32) { + sromctrl = bcma_read32(bus->drv_cc.core, BCMA_CC_SROM_CONTROL); + if (!(sromctrl & BCMA_CC_SROM_CONTROL_PRESENT)) + return -ENOENT; + } + sprom = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16), GFP_KERNEL); if (!sprom) diff --git a/include/linux/bcma/bcma_driver_chipcommon.h b/include/linux/bcma/bcma_driver_chipcommon.h index a33086a7530b..e72938b10714 100644 --- a/include/linux/bcma/bcma_driver_chipcommon.h +++ b/include/linux/bcma/bcma_driver_chipcommon.h @@ -181,6 +181,22 @@ #define BCMA_CC_FLASH_CFG 0x0128 #define BCMA_CC_FLASH_CFG_DS 0x0010 /* Data size, 0=8bit, 1=16bit */ #define BCMA_CC_FLASH_WAITCNT 0x012C +#define BCMA_CC_SROM_CONTROL 0x0190 +#define BCMA_CC_SROM_CONTROL_START 0x80000000 +#define BCMA_CC_SROM_CONTROL_BUSY 0x80000000 +#define BCMA_CC_SROM_CONTROL_OPCODE 0x60000000 +#define BCMA_CC_SROM_CONTROL_OP_READ 0x00000000 +#define BCMA_CC_SROM_CONTROL_OP_WRITE 0x20000000 +#define BCMA_CC_SROM_CONTROL_OP_WRDIS 0x40000000 +#define BCMA_CC_SROM_CONTROL_OP_WREN 0x60000000 +#define BCMA_CC_SROM_CONTROL_OTPSEL 0x00000010 +#define BCMA_CC_SROM_CONTROL_LOCK 0x00000008 +#define BCMA_CC_SROM_CONTROL_SIZE_MASK 0x00000006 +#define BCMA_CC_SROM_CONTROL_SIZE_1K 0x00000000 +#define BCMA_CC_SROM_CONTROL_SIZE_4K 0x00000002 +#define BCMA_CC_SROM_CONTROL_SIZE_16K 0x00000004 +#define BCMA_CC_SROM_CONTROL_SIZE_SHIFT 1 +#define BCMA_CC_SROM_CONTROL_PRESENT 0x00000001 /* 0x1E0 is defined as shared BCMA_CLKCTLST */ #define BCMA_CC_HW_WORKAROUND 0x01E4 /* Hardware workaround (rev >= 20) */ #define BCMA_CC_UART0_DATA 0x0300 |